CN105610140B - A kind of lightning protection surge protection - Google Patents
A kind of lightning protection surge protection Download PDFInfo
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- CN105610140B CN105610140B CN201510659459.7A CN201510659459A CN105610140B CN 105610140 B CN105610140 B CN 105610140B CN 201510659459 A CN201510659459 A CN 201510659459A CN 105610140 B CN105610140 B CN 105610140B
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Abstract
The present invention relates to overvoltage protection fields, disclose a kind of lightning protection surge protection, including：Discharge module (1), alarm indicating circuit (2), plastic box body (3), insulating bushing (4), the first conducting connecting part (5), insulated fixing support (6), the second conducting connecting part (9), remote signalling output connecting line (10), remote signalling output wiring terminal (11), module card base (12), metal connection crimping frame (13).The present invention has many advantages, such as that hardness is high, conducts electricity very well, fusing point is high, electricity it is ablative it is small, do not lose powder, local fault warning indicator light and distal end remote signalling alert dry contact signal, are suitable for on-site maintenance and remote monitoring function.
Description
Technical field
The present invention relates to overvoltage protection field more particularly to a kind of lightning protection surge protections.
Background technology
It is applied to the protective device of direct lightning strike and inductive lightning at present, is generally protected using the surge for thunder charge type of directly releasing
Protect device.Such protector is based on clearance-type arc discharge principle, using discharging gap electrode slice made of graphite material.But it is existing
In technology, due to low, frangible, the easy to fall off picking of the hardness of graphite sheet-like electrode tabs, the moisture absorption, formed big through-flow when being struck by lightning
When the electric discharge of capacity, in discharging gap, the discharge impact that is generated due to air breakdown and cause graphite electrode piece to crack or fall
Powder causes gap shorting and spark is caused to leak, causes short circuit malfunction, influences the normal power supply of equipment, or even fire occurs
Calamity.
Invention content
The present invention provides a kind of lightning protection surge protection, solves the discharge impact generated in the prior art by air breakdown
And graphite electrode piece is caused to crack or lose powder, it causes gap shorting and spark is caused to leak, cause the technology of short circuit malfunction
Problem.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of lightning protection surge protection, including：Discharge module 1, alarm indicating circuit 2, plastic box body 3, insulating bushing 4,
First conducting connecting part 5, insulated fixing support 6, the second conducting connecting part 9, remote signalling output connecting line 10, remote signalling outlet terminal
Son 11, module card base 12, metal connection crimp frame 13, wherein the alarm indicating circuit 2 is set in the plastic box body 3, institute
It states discharge module 1 with the alarm indicating circuit 2 to be isolated by the insulating bushing 4, the capacitance group 14 on the discharge module 1
It is connect with electrode slice 8 by first conducting connecting part 5, insulated fixing support 6 is used for fixed electrode film 8, and the alarm refers to
Show that circuit 2 exports connecting line 10 by the remote signalling and connect with the remote signalling output wiring terminal 11, the discharge module is by exhausted
Edge fixing bracket 6 is fixed, and the discharge module 1 is connect by second conducting connecting part 9 with firewire and zero curve, and passes through gold
Belong to wiring crimping frame 13 coupling part is fixed.
The technique effect of the present invention compared with the existing technology is：
1, discharge electrode material selection tungsten copper of the invention, has that hardness is high, conduct electricity very well, fusing point is high, electricity is ablative
Small, the advantages that not losing powder, it is ensured that in the repeat impact of the tolerance high current of direct lightning strike and inductive lightning, device uses the longevity
Life length.
2, the isolation that convex cumulative insulation spacer is used between each discharging gap electrode slice, between each tungsten copper discharging gap
Spacing is identical, strengthens the dielectric strength between tungsten copper electrode and Ignition capacitor, inductance connection device, and can be by lightning surge energy
Amount is gathered in position among each electrode slice, forms complete thunder discharge beam, electric arc caused by divergence is avoided to spray outward.
3, provided by the present invention capacitance, inductance value and resistance value select formula, can according to different impact capacity and
Lightning waveform calculates concrete numerical value, applied widely.
4, discharging gap quantity provided by the present invention, clearance distance, can be according to network system maximum continuous service electricity
Numerical value and anti-residual voltage ability is pressed to be selected.
5, shape, the size of the electrode slice of tungsten copper discharging gap provided by the present invention, can be according to lightning waveform type, logical
Current capacity selects.
What 6, the connection type between tungsten copper discharging gap electrode and π shapes capacitance, inductance ensure that between them reliable connects
It connects.
7, local fault warning indicator light provided by the present invention and distal end remote signalling alert dry contact signal, are suitable for scene
Maintenance and remote monitoring function.
8, high-frequency electromagnetic arteries and veins can be avoided as igniting start-up circuit using capacitance series inductance and the combination of resistance
It rushes and causes to discharge.It is tuned by inductance L, the impact that can be formed suitable for the higher lightning surge of climbing speed.
9, using electric resistance partial pressure and current limliting, reduce influence of the lightning stroke overload to igniting startup and instruction warning circuit.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of lightning protection surge protection of the embodiment of the present invention；
Fig. 2 is a kind of electrical block diagram of lightning protection surge protection of the embodiment of the present invention；
Fig. 3 is the schematic diagram of three kinds of shapes of the tungsten copper electrode slice of the embodiment of the present invention；
Fig. 4 is the schematic diagram of three kinds of shapes of the convex cumulative insulation spacer of the embodiment of the present invention；
Fig. 5 is the schematic diagram of the electrode slice and capacitance group hook-type connection type of the embodiment of the present invention；
Fig. 6 is the schematic diagram of the electrode slice and capacitance group L-shaped connection type of the embodiment of the present invention.
1- discharge modules, 2- alarms indicating circuit, 3- plastic box bodies, 4- insulating bushings, the first conducting connecting parts of 5-, 6- are exhausted
Edge fixing bracket, 7- convex cumulatives insulation spacer, 8- electrode slices, the second conducting connecting parts of 9-, 10- remote signalling output connecting line, 11-
Remote signalling output wiring terminal, 12- modules card base, 13- metal connections crimping frame, 14- capacitance groups, 15- resonant inductances, 16- partial pressures
Current-limiting resistance.
Specific implementation mode
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
As shown in Figure 1, for a kind of lightning protection surge protection of the embodiment of the present invention, including：Discharge module 1, alarm instruction
Circuit 2, plastic box body 3, insulating bushing 4, the first conducting connecting part 5, insulated fixing support 6, the second conducting connecting part 9, remote signalling
It exports connecting line 10, remote signalling output wiring terminal 11, module card base 12, metal connection and crimps frame 13, wherein the alarm instruction
Circuit 2 is set in the plastic box body 3, the discharge module 1 and the alarm indicating circuit 2 by the insulating bushing 4 every
From the capacitance group 14 on the discharge module 1 is connect by first conducting connecting part 5 with electrode slice 8, insulated fixing support
6 are used for fixed electrode film 8, and the alarm indicating circuit 2 exports connecting line 10 and the remote signalling output connection by the remote signalling
Terminal 11 connects, and the discharge module is fixed by insulated fixing support 6, and the discharge module 1 is conductively connected by described second
Part 9 is connect with firewire and zero curve, and crimps frame 13 by metal connection and coupling part is fixed.
Wherein, as shown in Fig. 2, the discharge module 1 is by N+1 tungsten copper discharging gap, the identical capacitance connection of N number of capacitance
π shapes discharge circuit, resonant inductance 15, the current-limiting resistor voltage divider 16 of composition form, wherein and the 1st discharging gap is connect with firewire,
The N+1 discharging gap is connect with zero curve, the connection of conductor between all capacitance one end and two tungsten copper discharging gaps, the other end with
15 one end of the resonant inductance connects, and 15 other end of the resonant inductance is connect with one end of the current-limiting resistor voltage divider 16, institute
The other end for stating current-limiting resistor voltage divider 16 is connect with zero curve.
As shown in Fig. 2, the alarm indicating circuit 2 includes resistance, filter inductance, rectification circuit, filter capacitor, luminous two
Pole pipe, photorelay, wherein after firewire is connected through resistance, filter inductance, it is connect with an input terminal of rectification circuit,
Another input terminal of the rectification circuit is connect with 15 other end of the resonant inductance, two output ends of the rectification circuit
Filter capacitor is connected, an output end of the rectification circuit connects one input terminal of photorelay by light emitting diode,
Another output end of the rectification circuit connects another input terminal of the photorelay, the photorelay it is defeated
Outlet exports connecting line 10 by the remote signalling and is connect with the remote signalling output wiring terminal 11.
The spacing of tungsten copper discharging gap is 0.2-1.0mm, and each tungsten copper discharging gap is the identical equal discharge gaps of spacing.
The capacitance C=kI/ (2 π fU) of all capacitances, wherein I is electric discharge total current, and f is thunder and lightning wave frequency rate, and U is capacitance
Rated voltage, k are surplus coefficient, K>1, the inductance value of inductance coil L meets R2>4L/C, R are equivalent total electricity of series circuit
Resistance.The equivalent resistance to be formed and series resistance is lost using the dead resistance of inductance, discharge resistance, capacitor dielectric, and it is external
Inductance and capacitance constitute RLC series circuits, and inductance L is selected to meet condition R2>4L/C makes circuit be in damping state but close to facing
Street damping state, to eliminate overshoot and to postpone the surge impact to rear class.
As shown in figure 3, tungsten copper electrode slice 9 can be square, rectangle, circle or kidney-shaped.Using tungsten copper as multistage
Discharging gap material, loss is small, and electrical speed is fast, and arc ablation resistance performance is good.
As shown in figure 4, convex cumulative insulation spacer 4 is convex or spill, interior band boss or concave station.Tungsten copper discharging gap it
Between place convex cumulative insulation spacer, each tungsten copper discharging gap piece assembles with convex cumulative insulation spacer with overlapped way.
As shown in Figure 5 and Figure 6, first conducting connecting part (5) is hook-shaped or L shapes.
The operation principle of the embodiment of the present invention is as follows：
1, when being not subject to lightning stroke, since each tungsten copper discharging gap is connected in series with, breakdown voltage and point of discharge thermoelectricity
The breakdown voltage of appearance is higher than the operating voltage of power supply, so operating supply voltage is not enough to breakdown tungsten copper discharging gap, at this time institute
There is gap not work, indicator light is bright, while remote signalling warning circuit exports normally closed or normally opened dry contact signal, to adopt at a distance
Collect the normally closed or normally opened state of warning circuit.
2, when by being struck by lightning, since tungsten copper discharging gaps at different levels are smaller, the 1st grade of tungsten copper discharging gap is punctured by lightning stroke,
And be provided with capacitance series inductance carry out auxiliary firing electric discharge, behind each discharging gap firing circuit effect under puncture successively
Electric discharge, after all gap discharge conductings, the limitation voltage between head and the tail gap is clamped at relatively low numerical value, it is ensured that limitation voltage is not
The safety that can be more than equipment bears voltage.
3, when device is when being struck by lightning or abnormity of power supply due to damages or powers off, local alarm indicator light extinguishes, while distant
The normally opened or normally closed dry contact signal of (device breaks down or powers off) in the case of letter warning circuit output abnormality.
4, the convex in insulation cumulative gasket or spill setting, can guide thunder energy to converge in each tungsten copper discharging gap
Electrode slice center, it is ensured that lightning current is gradually spread after electric discharge to surrounding among the electrode slice, avoid the electric arc that electric discharge generates to
Outer injection.
5, due to the effect of connecting of Ignition capacitor and inductance, resistance, capacitive reactance of the capacitance under thunder and lightning wave frequency rate is larger, passes through
Lightning surge electric current it is small, the voltage that is generated on capacitance when capacitance pressure resistance is more than lightning stroke in circuit, therefore capacitance will not be because
It is struck by lightning and damages.
The invention has the advantages that：
1, discharge electrode material selection tungsten copper of the invention, has that hardness is high, conduct electricity very well, fusing point is high, electricity is ablative
Small, the advantages that not losing powder, it is ensured that in the repeat impact of the tolerance high current of direct lightning strike and inductive lightning, device uses the longevity
Life length.
2, the isolation that convex cumulative insulation spacer is used between each discharging gap electrode slice, between each tungsten copper discharging gap
Spacing is identical, strengthens the dielectric strength between tungsten copper electrode and Ignition capacitor, inductance connection device, and can be by lightning surge energy
Amount is gathered in position among each electrode slice, forms complete thunder discharge beam, electric arc caused by divergence is avoided to spray outward.
3, provided by the present invention capacitance, inductance value and resistance value select formula, can according to different impact capacity and
Lightning waveform calculates concrete numerical value, applied widely.
4, discharging gap quantity provided by the present invention, clearance distance, can be according to network system maximum continuous service electricity
Numerical value and anti-residual voltage ability is pressed to be selected.
5, shape, the size of the electrode slice of tungsten copper discharging gap provided by the present invention, can be according to lightning waveform type, logical
Current capacity selects.
What 6, the connection type between tungsten copper discharging gap electrode and π shapes capacitance, inductance ensure that between them reliable connects
It connects.
7, local fault warning indicator light provided by the present invention and distal end remote signalling alert dry contact signal, are suitable for scene
Maintenance and remote monitoring function.
8, high-frequency electromagnetic arteries and veins can be avoided as igniting start-up circuit using capacitance series inductance and the combination of resistance
It rushes and causes to discharge.It is tuned by inductance L, the impact that can be formed suitable for the higher lightning surge of climbing speed.
9, using electric resistance partial pressure and current limliting, reduce influence of the lightning stroke overload to igniting startup and instruction warning circuit.
The present invention is described in detail above, specific case used herein is to the principle of the present invention and embodiment party
Formula is expounded, and the explanation of above example is only intended to facilitate the understanding of the method and its core concept of the invention；Meanwhile it is right
In those of ordinary skill in the art, according to the thought of the present invention, change is had in specific embodiments and applications
Place, in conclusion the content of the present specification should not be construed as limiting the invention.
Claims (4)
1. a kind of lightning protection surge protection, which is characterized in that including：Discharge module (1), alarm indicating circuit (2), plastic box body
(3), insulating bushing (4), the first conducting connecting part (5), insulated fixing support (6), the second conducting connecting part (9), remote signalling output
Connecting line (10), remote signalling output wiring terminal (11), module card base (12), metal connection crimping frame (13), wherein the alarm
Indicating circuit (2) is set in the plastic box body (3), and the discharge module (1) passes through described with the alarm indicating circuit (2)
Insulating bushing (4) is isolated, and the capacitance group (14) on the discharge module (1) passes through first conducting connecting part (5) and electrode
Piece (8) connects, and insulated fixing support (6) is used for fixed electrode film (8), and the alarm indicating circuit (2) is defeated by the remote signalling
Going out connecting line (10) to connect with the remote signalling output wiring terminal (11), the discharge module is fixed by insulated fixing support (6),
The discharge module (1) is connect by second conducting connecting part (9) with firewire and zero curve, and crimps frame by metal connection
(13) coupling part is fixed；
The discharge module (1) is discharged electric by the π shapes that N+1 tungsten copper discharging gap, the identical capacitance connection of N number of capacitance are constituted
Road, resonant inductance (15), current-limiting resistor voltage divider (16) composition, wherein the 1st discharging gap is connect with firewire, the N+1 electric discharge
Gap is connect with zero curve, the conductor connection between all capacitance one end and two tungsten copper discharging gaps, the other end and resonance electricity
Feel the connection of (15) one end, resonant inductance (15) other end is connect with one end of the current-limiting resistor voltage divider (16), described point
The other end of pressure current-limiting resistance (16) is connect with zero curve；Tungsten copper electrode slice (9) can be square, rectangle, circle or kidney-shaped；
Convex cumulative insulation spacer (4) is convex or spill, and interior band boss or concave station, the alarm indicating circuit (2) include resistance, filter
Wave inductance, rectification circuit, filter capacitor, light emitting diode, photorelay, wherein firewire connects it through resistance, filter inductance
Afterwards, it is connect with an input terminal of rectification circuit, another input terminal and the resonant inductance (15) of the rectification circuit are another
One end connects, and two output ends of the rectification circuit connect filter capacitor, and an output end of the rectification circuit passes through hair
Optical diode connects one input terminal of photorelay, another output end of the rectification circuit connects the photorelay
Another input terminal, the output end of the photorelay passes through the remote signalling and exports connecting line (10) to be exported with the remote signalling
Connecting terminal (11) connects.
2. lightning protection surge protection according to claim 1, which is characterized in that the spacing of tungsten copper discharging gap is 0.2-
1.0mm, and each tungsten copper discharging gap is the identical equal discharge gaps of spacing.
3. lightning protection surge protection according to claim 1, which is characterized in that capacitance C=kI/ (2 π of all capacitances
FU), wherein I is electric discharge total current, and f is thunder and lightning wave frequency rate, and U is the rated voltage of capacitance, and k is surplus coefficient, K>1, inductor wire
The inductance value of circle L meets R2>4L/C, R are the equivalent total resistance of series circuit.
4. lightning protection surge protection according to claim 1, which is characterized in that first conducting connecting part (5) is hook
Shape or L shapes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510659459.7A CN105610140B (en) | 2015-10-12 | 2015-10-12 | A kind of lightning protection surge protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510659459.7A CN105610140B (en) | 2015-10-12 | 2015-10-12 | A kind of lightning protection surge protection |
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| Publication Number | Publication Date |
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| CN105610140A CN105610140A (en) | 2016-05-25 |
| CN105610140B true CN105610140B (en) | 2018-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510659459.7A Active CN105610140B (en) | 2015-10-12 | 2015-10-12 | A kind of lightning protection surge protection |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565850B (en) * | 2018-05-21 | 2019-08-13 | 西安交通大学 | The concatenated lightning protection device of multistage gap |
| CN108808644B (en) * | 2018-06-28 | 2019-08-13 | 西安交通大学 | Plural serial stage gap arrester for power electronic equipment lightning protection |
| CN108711836A (en) * | 2018-07-02 | 2018-10-26 | 李红斌 | A kind of switching mode SPD of built-in disconnector |
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| CN101090197A (en) * | 2007-04-29 | 2007-12-19 | 四川中光防雷科技有限责任公司 | High efficient laminated graphic discharge gap device |
| CN201413989Y (en) * | 2009-06-18 | 2010-02-24 | 成都兴业雷安电子有限公司 | Matrix form high power air release module |
| CN201417942Y (en) * | 2009-06-18 | 2010-03-03 | 成都兴业雷安电子有限公司 | Matrix pressure-sensitive surge protection module |
| CN102545196A (en) * | 2012-02-10 | 2012-07-04 | 杨国华 | Multilayer discharge gap type surge protection device |
| CN202940588U (en) * | 2012-11-07 | 2013-05-15 | 河南维能防护科技有限公司 | Lightning protection device for coal mine wellhead entry communication cable |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5272123B2 (en) * | 2010-11-09 | 2013-08-28 | 音羽電機工業株式会社 | SPD with deterioration warning function |
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- 2015-10-12 CN CN201510659459.7A patent/CN105610140B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101090197A (en) * | 2007-04-29 | 2007-12-19 | 四川中光防雷科技有限责任公司 | High efficient laminated graphic discharge gap device |
| CN201413989Y (en) * | 2009-06-18 | 2010-02-24 | 成都兴业雷安电子有限公司 | Matrix form high power air release module |
| CN201417942Y (en) * | 2009-06-18 | 2010-03-03 | 成都兴业雷安电子有限公司 | Matrix pressure-sensitive surge protection module |
| CN102545196A (en) * | 2012-02-10 | 2012-07-04 | 杨国华 | Multilayer discharge gap type surge protection device |
| CN202940588U (en) * | 2012-11-07 | 2013-05-15 | 河南维能防护科技有限公司 | Lightning protection device for coal mine wellhead entry communication cable |
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| CN105610140A (en) | 2016-05-25 |
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